update permissions required for BACKUP and RESTORE

[morgo]

What is changed, added or deleted? (Required)

TIDB v5.1 supports fine grained privileges (aka Dynamic privileges), so it's recommended to use these over SUPER. This adds the fine grained privileges for BACKUP and RESTORE commands.

Which TiDB version(s) do your changes apply to? (Required)

• master (the latest development version)
• v5.1 (TiDB 5.1 versions)
• v5.0 (TiDB 5.0 versions)
• v4.0 (TiDB 4.0 versions)
• v3.1 (TiDB 3.1 versions)
• v3.0 (TiDB 3.0 versions)
• v2.1 (TiDB 2.1 versions)

What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s):

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[ti-chi-bot]

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• CharLotteiu
• SunRunAway

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[CharLotteiu]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

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Commit hash: e4205e3

[CharLotteiu]

/remove-translation doing
/translation done